22223801138 has 90 divisors (see below), whose sum is σ = 43808044203. Its totient is φ = 8424606960.

The previous prime is 22223801137. The next prime is 22223801177. The reversal of 22223801138 is 83110832222.

It can be written as a sum of positive squares in 3 ways, for example, as 21879438889 + 344362249 = 147917^2 + 18557^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105413.

It is not an unprimeable number, because it can be changed into a prime (22223801137) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 600643256 + ... + 600643292.

Almost surely, 2^22223801138 is an apocalyptic number.

22223801138 is a deficient number, since it is larger than the sum of its proper divisors (21584243065).

22223801138 is an frugal number, since it uses more digits than its factorization.

22223801138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

Multiplying 22223801138 by its sum of digits (32), we get a square (711161636416 = 843304²).

The spelling of 22223801138 in words is "twenty-two billion, two hundred twenty-three million, eight hundred one thousand, one hundred thirty-eight".